Near-IR activity of hybrid solar cells: enhancement of efficiency by dissociating excitons generated in PbS nanoparticles
| Title | Near-IR activity of hybrid solar cells: enhancement of efficiency by dissociating excitons generated in PbS nanoparticles |
| Publication Type | Journal Article |
| Year of Publication | 2010 |
| Authors | Guchhait, A, Rath, AKumar, Pal, AJ |
| Journal | Applied Physics Letters |
| Volume | 96 |
| Issue | 7 |
| Pagination | Article no: 073505 |
| Date Published | FEB |
| Abstract | Photovoltaic devices based on PbSnanoparticles remained inactive in the near-IR region due to a not-so-favorable energy band-diagram that does not allow dissociation of excitons generated in PbS. In this work, with the introduction of nanostructures in the PbS-based hybrid system, we show an enhancement of photovoltaic performance in both visible and near-IR regions. The addition of increases the power conversion efficiency from 0.006% to 0.12%. With the aid of energy band-diagram, we show that excitons generated in PbS even in the near-IR range can now become dissociated to yield photocurrent in the external circuit. |
| DOI | 10.1063/1.3292183 |
| Funding Agency | Council of Scientific & Industrial Research (CSIR) - India |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.820 |
Divison category:
Physical and Materials Chemistry